IDC courses start every month. Divemaster courses start everyday.
IDC & IE Schedule
| Month/Course | EFRI | IDC | AI | OWSI | IE | IDC Staff | MSDT |
| January | 24-25 | 13-24 | 13-18 | 19-24 | 26-27 | 11-24 | 29- |
| February | 21-22 | 10-21 | 10-15 | 16-21 | 23-24 | 8-21 | 26- |
| March | 21-22 | 10-21 | 10-15 | 16-21 | 23-24 | 8-21 | 26- |
| April | 7-8 | 9-18 | 9-12 | 13-18 | 20-21 | 5-6 | 23- |
| May | 5-6 | 7-16 | 7-10 | 11-16 | 18-19 | 3-4 | 21- |
| June | 9-10 | 11-20 | 11-14 | 15-20 | 22-23 | 7-8 | 25- |
| July | 7-8 | 9-18 | 9-12 | 13-18 | 20-21 | 5-6 | 23- |
| August | 11-12 | 13-22 | 13-16 | 17-22 | 24-25 | 9-10 | 27- |
| September | 8-9 | 10-19 | 10-13 | 14-19 | 21-22 | 6-7 | 24- |
| October | 6-7 | 8-17 | 8-11 | 12-17 | 19-20 | 4-5 | 22- |
| November | 3-4 | 5-14 | 5-8 | 9-14 | 16-17 | 1-2 | 19- |
| December | 8-9 | 10-19 | 10-13 | 14-19 | 21-22 | 6-7 | 24- |
